METHOD FOR AUTOMATIC ADJUSTMENT OF FREQUENCY OF SUPPORTING SIGNAL OF RECEIVING STATION, METHOD FOR ESTIMATING MISMATCH OF FREQUENCY OF BEAM SIGNALS RELATIVELY TO FREQUENCY OF SUPPORTING SIGNAL, DEVICE FOR AUTOMATIC ADJUSTMENT OF FREQUENCY OF SUPPORTING SIGNAL OF RECEIVING STATION Russian patent published in 2006 - IPC H04B7/00 H03J7/00 H04L27/30 

FIELD: broadband cell radio communication systems, possible use for correcting frequency of supporting generator of mobile stations, necessary for provision of coherent message receipt mode.

SUBSTANCE: serial cyclic procedure of estimating mismatch and its compensation uses original algorithm for determining maximum of solving function by two of its values from the area where frequency is undetermined, thus making it possible to decrease frequency mismatch compensation time. Proposed procedure has increased interference resistance, because it uses additional digital supporting signal. Proposed algorithm can function with different, including substantial, values of original frequency mismatch. Algorithm is efficient both at beginning stage (in frequency capture mode) and during following automatic adjustment. Proposed variant of realization of frequency automatic adjustment allows precise adjustment of frequency of supporting generator even in case of very low signal-noise ratio for signal being received.

EFFECT: increased precision of estimation of frequency of input multi-beam signal, including cases with substantial frequency mismatches.

3 cl, 9 dwg